A package containing meth threw office worker Tan Doudou's life into disarray. It had been sent by her boyfriend, Jin Yuan, who had fled from their wedding seven years earlier. Avoiding the police, Tan Doudou went to the coast to look for Jin Yuan. By then, the police suspected Jin Yuan of using auctions to launder money for a drug-trafficking organization, but Tan Doudou still wanted to persuade him to turn over a new leaf. In truth, Jin Yuan was an undercover agent planted by the police inside the organization. He could only act cold toward Tan Doudou in the hope of keeping her out of danger, while also fending off the drug dealers' constant tests. Meanwhile, officer Qiao Liang discovered that his girlfriend's father, Captain Huang, was a mole. In the end, Jin Yuan and the anti-narcotics squad paid in blood to successfully destroy the drug-trafficking organization.
